2014/11/30 by S. M. Bilenky, C. Giunti · 8 citations
Physics and Astronomy · #Double beta decay #Lepton #Lepton number #MAJORANA #Neutrino #Neutrino Physics Research #Particle physics theoretical and experimental studies #Phenomenology (philosophy) #Physics beyond the Standard Model #Radioactive Decay and Measurement Techniques #Seesaw mechanism #hep-ex #hep-ph
paper · pdf · doi:10.1142/s0217751x1530001x
61 pages; final version published in International Journal of Modern Physics A 30, 1530001 (2015)
openalex publication_date 2015/02/06 · arxiv created 2015/02/16 · arxiv updated 2015/06/23 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
In the Standard Model the total lepton number is conserved. Thus, neutrinoless double-β decay, in which the total lepton number is violated by two units, is a probe of physics beyond the Standard Model. In this review we consider the basic mechanism of neutrinoless double-β decay induced by light Majorana neutrino masses. After a brief summary of the present status of our knowledge of neutrino masses and mixing and an introduction to the seesaw mechanism for the generation of light Majorana neutrino masses, in this review we discuss the theory and phenomenology of neutrinoless double-β decay. We present the basic elements of the theory of neutrinoless double-β decay, our view of the present status of the challenging problem of the calculation of the nuclear matrix element of the process and a summary of the experimental results.